07-26-2007 06:23 PM
07-27-2007 08:09 AM
When you run the vi from the project window you are "targeting" the cFP. Once you have your vi is finished and tested, you need to build the executable and deploy it.
Here is a link to get you started. http://digital.ni.com/public.nsf/allkb/258110F1F6415B1C86257213000E065A
08-01-2007 10:26 AM
08-02-2007 05:23 PM
hi Ching Pi,
Thanks for the response. Actually, I have been doing what was described in the link you posted. The VI _did_ keep running, which I verified by viewing a logged datafile and printing out the loop iteration. However, the input data from my channels would be repeated each time step, until I reconnected. Any further thoughts?
thanks
08-03-2007 10:30 AM - edited 08-03-2007 10:30 AM
Hi beaver42,
For output channels, it is really easy to set the value if network
communication goes down. What you would do is set the network watchdog
timer in Measurement and Automation Explorer (MAX). For more information
on that, you can look at the FieldPoint help (Start » All Programs » National
Instruments » FieldPoint X.XX » FieldPoint Help). Go to the search tab
and type Watchdog. The first result should be Configuring the Network
Watchdog. This document should give you all the information you need to
get started with watchdog timers. If you have additional questions, you
can also look here.
For input channels, this is not as easy. What you can do is read the
error output of the FP Read or FP Write and manually set the value if there is
an error. Below is an example of what you could do. A more accurate
way to do this is to only manually set the value for network communication
errors. You will need to unbundle the error cluster from the FP Read or
FP Write and just wire the error code into the case structure. I believe
the code you will want to look for is: -33804 Ethernet communication has
failed. Possible cause: missing or
disconnected network card or network
card drivers.
Please let me know if you have any additional questions or concerns.
Message Edited by Ching P. on 08-03-2007 10:30 AM